Mode and means for manufacture of sheet-glass.



1-. FM. 0PPERMANN. .MODB Am) MEANS FOR MANUFAcTpRI: 0F SHEET GLASS.

' APPLICATION FILED SEYT. 27, 1907.-

' Patented Apr.v12, 1910.

2 sums-81mm 1.

Mom: AND

F. M. OPPERMANN. MEANS FOR MANUFACTURE OF SHEET GLASS- APPLIOATION FILED SEPT. 27, 1907. I I

' Patented Apr. 12,1910.

2 SHEETS-BEBE! 2.

Witnesses.

form a The coolin .peratur. .These cylinders are 9 two'liinds,

' I bo'vglass sheet.

UNITED s'r 'rEs PATENT ()FFICE.

:rnmmnrcx mic-zinnlorr nnman i Application filed September 2 To all whom 'it may concern:

Be it known that I, Fnannmcx MICHEL Orrnm'taxx, a citizen of the United States -of America, residing-atSt. Scrvais, .near

5 Namur', Belgium, have invented certain. new

' and useful-Improvements in the Mode and Means for Mann acture' of Sheet-Glass; and

I do hereby declare-the following to be a full, clear; and exact description of thejin- 1c vent-ion, such as will enable-othcrs skilled.

in the art to which it ap'pertains' to make' and usc the same, reference being had to the accompanying drawings, and to letters or figures of reference markedlthereon, which art of this specification.

This invention relates to improvements in the mode of and means for the manufacture of sheet glass, and refers particularly to the cooling of the piece of glass-which is ob- 20 tained in an'oven for the mechanical manu-- facture of sheet glass and in which the slot of-;issue coincides'with the axis of rotation ofthe movable pot,1as-described in my Patent No. 915,879, dated March 23, 1909.

1 s not-effected in a vertical chamber or c imneyj, the .word chimne in used as'meanin a-vertical o'r inc ined tu in which-is produced a draft undcrthe influence olfdiflerences of temperatures. In

30 the present .,arrangement yall draft is sup pressed; and vthe gradual reduction of temperature ofgth'esheet :of glass formed is roughtabojnt by means of hollow or solid cylinders maintained at the r uired temsome guidiiiglsupport-ing or-drawingthe sheet ofirglass, while others are interposed between-the first ones to form a. joint and prven trthe air circulation from contact with 4 0.- th'e formed sheet glass. In other words, the sheet of glass as 1t leaves the pot passes be tween two seriesof opposed operative-sar faces contacting with the glass, thefsurfaces 'of each series being distanced vfrom one another, and there are maintained bodies of air entrapped between the adjacent surfaces "of each series and the sheet of glass-as it is drawnzfrom the pot, to prevent the pas-' sage oi .air currents along the face of the The dfmwin'gsaccompanying this specification" show the a plication of the system to the oven describe anmy Patent No. 915,879, herein'bove referred to, wherein the sheet of glass drawntoward; the top, or in an.

6 and N, or s'r. snnvars, BELGIUhlL,

, :MODE AND MEANS FOR MANUFACTUBE 0F SHEET-GLAS.

Specification of Letters lifient; Patented Apf. 12, .1910.

7, leow'ftrial No. 394,871.

downward or drawn toward the bottom.

In order that this invention may-be. clearly understood: and more easily carried into practice, -"lhave appended hereunto drawings in which I have illustrated the nature of my said improvements.

0 Figure 1 is a vertical transverse section of the'oven on the line A-B of Fig. 2; Fig. 2 is a view partly in front elevation and partly in section .on line.E--F, Fig. 4. Fig. 3 is an enlarged view showing thedisposition of the axes of the rollers, and Fig. 4 is a section on line C D, Figs. 2 and 3.

'Inearrying this invention into practice two vertical-frames, 15 and 16, which are placed in the vertical plane of the axis of rotation of the pot 13, turn on each of the' axes 12 and 14 parallel to the axis of rota-- tion of the pot 13. These frames are main tained in theposition shown in the drawing by any suitable means. They carry the axes These axes 6 and 7 are carried by movable :bearings urged toward the meeting edges m' upward direction. The same system may-be applied when. the sheet of glass is directed 7 of the metallic rollers 4 and 3.

n of the frames 15- and 16 by means of I springs 8 and 10, the tension of which may be regulated by the screws 9 and 11. I

The sheetof glass 1, comin out of the slot 2 moves .in the vertical pi The ends of the rollers 3 and 4 arejset "close to the iirames 15 and 16 to prevent the 'assage of air currents as much as possible, and the rollers 3 and 4 placed all alongthjese frames alternately, being tangent to each other, permit the sheet of glass to displace itself'in a succession of spaces entirely closetl. Each of the rollers 3 and 4 can be cooled down or heated in any way, e ther internally me through the axis of rotation of the pot, and is drawn and guided by the rollers 4 through the. cooling arrangement of leer 15 16. A A

or externally. These rollers are-driven by endless chains or cables 17, actuatedlby do or other wheels 18 fixedon the axes 6 and? of the rollers. Any one of each oi 'these series of. axes can be driven by any suitable form of motor. The described mode of suspension of the frames 15 and 16 permits them to swing around the axes 12 and 14 ted-raw the rollers U 4 away from the formedsheetjef glass, which permits in case of the-sheet glass breaking, to readily let the broken glass drop and to rapidly begin again the operation by bringing the frames and consequently the rollers into the positionshown in the d'rawin s. The Various rollers not being inclose in a box or chimney, it is easy to watch themconstantly, and if necessary, to replace them.- It is advdiltageous to have, as shown, between the first rollers 4 and the slotof issue 2, a closed chamber 34:, in which the sheet of glass isannealed after it has undergone a first or partial cooling down under the aetion of radiation of tubes 31 placed near the slot and in which a cold liquid circulates. This chamber 34 is formed at the back by the front part- 19 of the ovemtoward the bottom by the parts 21 and 22 of the poured; of a set of rolls one on each side of rolls, an entirety proximate movable pct 13, at the to and on the sidesby fire-proof walls 23 an 24 secured to-the oven, and'in front bya movable panel or door 25"turnin or swinging onpivots 26. This door 25 is ormed by an iron tranie car rying mitthe interior of the chamber '34 to beinspected. This chamber can be more or less-1 heated by openings 29 provided in the front wall 19 of the oven and by its comniunication with the hot gas channel 30 enyelopin 29 can be closed bv means of the stoppers 32hr 33, when desired' I claim 1. The combination with a furnace and i a pot having a glass supply slot through which the molten glass is forced; ofaset of cylinders on' each sideof the plate being drawn, frames in which said cylinders are. mounted, and elements cooperating with the cylinders and out of contact with-the glass forming closed chambers into which the sheet is drawn after leaving the pot, whereby currents of air are preventedfrom pass ing along the sheet.

2. The combination with a furnace'andh I pot having a glass supply slot through which the molten glass is forced upward; of a set of rolls one on each'side of the'platebeing drawn, comprising drawing IOJS'GOIII tacting with 3. The combination with'a furnace'and a pouring pot therein having a glass supply 'slo't through which the -molte'n glass-is theplate being drawn, comprising drawing rolls'contacting with the sheetand intermediate rolls contacting with the drawing;

and means to move each set-0f rolls as out of operative position.

4. The combination with a furnace and a rotatable 0t having a glass. supply slot-'apy at the center of rotation, said of means proximate the slot for setting the over the 5 0t and in front of the furnace.

- 'm 1 e r. neal ng c ambert slot and-coohn'gi ha on T-irons mica sheets 28; which per between the cyli the movable pot 13. These openings'30anc h 1 enting 't erby the sheet and intermediate rolls 'contacting with the drawing r0l1s.

lass, and an annealing chamber l d a 'rotatablef pourin" F-PQ thereinl f'avin' g snpplyfslotig said; pot off tl ie if i. he fu nac of mean 1P1 the 'slot fo'r settingth an from passing-over t w Po rm 0t o q tsi w in'gp artofsth means proxi an a linealingv hi sa lable means-toad] h be Gam s;

lot

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